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Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands | Total | Common Stock [Member] | Additional Paid-In Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Loss [Member]
--- | --- | --- | --- | --- | ---
Balance, beginning of year, shares at Nov. 30, 2014 |  | 50,677,000 |  |  |
Balance, beginning of year at Nov. 30, 2014 | $ 543,245 | $ 507 | $ 209,271 | $ 347,193 | $ (13,726)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Issuance of stock under employee stock purchase plan, shares |  | 226,000 |  |  |
Issuance of stock under employee stock purchase plan | 4,431 | $ 2 | 4,429 |  |
Exercise of stock options, shares |  | 449,000 |  |  |
Exercise of stock options | 8,369 | $ 4 | 8,365 |  |
Vesting of restricted stock units and release of deferred stock units, shares |  | 714,000 |  |  |
Vesting of restricted stock units and release of deferred stock units | 7 | $ 7 |  |  |
Withholding tax payments related to net issuance of restricted stock units, shares |  | (215,000) |  |  |
Withholding tax payments related to net issuance of restricted stock units | (5,631) | $ (3) | (5,628) |  |
Tax benefit arising from employee stock purchase plan, stock options and restricted share activity | 610 | $ 2 | 608 |  |
Stock-based compensation | $ 24,004 |  | 24,004 |  |
Treasury stock repurchases and retirements, shares | (1,300,000) | (1,271,000) |  |  |
Treasury stock repurchases and retirements | $ (32,868) | $ (13) | (13,625) | (19,230) |
Net loss | (8,801) |  |  | (8,801) |
Other comprehensive loss | (10,902) |  |  |  | (10,902)
Balance, end of year, shares at Nov. 30, 2015 |  | 50,580,000 |  |  |
Balance, end of year at Nov. 30, 2015 | 522,464 | $ 506 | 227,424 | 319,162 | (24,628)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Issuance of stock under employee stock purchase plan, shares |  | 266,000 |  |  |
Issuance of stock under employee stock purchase plan | 5,328 | $ 3 | 5,325 |  |
Exercise of stock options, shares |  | 260,000 |  |  |
Exercise of stock options | 4,698 | $ 2 | 4,696 |  |
Vesting of restricted stock units and release of deferred stock units, shares |  | 700,000 |  |  |
Vesting of restricted stock units and release of deferred stock units | 7 | $ 7 |  |  |
Withholding tax payments related to net issuance of restricted stock units, shares |  | (156,000) |  |  |
Withholding tax payments related to net issuance of restricted stock units | (3,984) | $ (2) | (3,982) |  |
Tax benefit arising from employee stock purchase plan, stock options and restricted share activity | 489 | $ 0 | 489 |  |
Stock-based compensation | 22,541 |  | 22,541 |  |
Dividends declared | $ (6,067) |  |  | (6,067) |
Treasury stock repurchases and retirements, shares | (3,100,000) | (3,113,000) |  |  |
Treasury stock repurchases and retirements | $ (79,188) | $ (31) | (17,482) | (61,675) |
Net loss | (55,726) |  |  | (55,726) |
Other comprehensive loss | $ (3,933) |  |  |  | (3,933)
Balance, end of year, shares at Nov. 30, 2016 | 48,536,516 | 48,537,000 |  |  |
Balance, end of year at Nov. 30, 2016 | $ 406,629 | $ 485 | 239,011 | 195,694 | (28,561)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Issuance of stock under employee stock purchase plan, shares |  | 220,000 |  |  |
Issuance of stock under employee stock purchase plan | 4,900 | $ 2 | 4,898 |  |
Exercise of stock options, shares |  | 203,000 |  |  |
Exercise of stock options | 5,108 | $ 2 | 5,106 |  |
Vesting of restricted stock units and release of deferred stock units, shares |  | 660,000 |  |  |
Vesting of restricted stock units and release of deferred stock units | 7 | $ 7 |  |  |
Withholding tax payments related to net issuance of restricted stock units, shares |  | (118,000) |  |  |
Withholding tax payments related to net issuance of restricted stock units | (3,756) | $ (1) | (3,755) |  |
Tax benefit arising from employee stock purchase plan, stock options and restricted share activity | 679 | $ 0 | 679 |  |
Stock-based compensation | 14,153 |  | 14,153 |  |
Dividends declared | $ (24,679) |  |  | (24,679) |
Treasury stock repurchases and retirements, shares | (2,200,000) | (2,221,000) |  |  |
Treasury stock repurchases and retirements | $ (73,936) | $ (22) | (10,729) | (63,185) |
Net loss | 37,417 |  |  | 37,417 |
Other comprehensive loss | $ 9,562 |  |  |  | 9,562
Balance, end of year, shares at Nov. 30, 2017 | 47,281,035 | 47,281,000 |  |  |
Balance, end of year at Nov. 30, 2017 | $ 376,084 | $ 473 | $ 249,363 | $ 145,247 | $ (18,999)

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